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-rw-r--r--src/mesa/swrast/s_span.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c
index da22fe14a62..a03eec8b2aa 100644
--- a/src/mesa/swrast/s_span.c
+++ b/src/mesa/swrast/s_span.c
@@ -1,8 +1,8 @@
-/* $Id: s_span.c,v 1.52 2002/11/09 21:28:41 brianp Exp $ */
+/* $Id: s_span.c,v 1.53 2002/11/26 03:00:04 brianp Exp $ */
/*
* Mesa 3-D graphics library
- * Version: 5.0
+ * Version: 5.0.1
*
* Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
*
@@ -1060,7 +1060,11 @@ _mesa_write_rgba_span( GLcontext *ctx, struct sw_span *span)
color[ACOMP] = FixedToChan(span->alpha);
(*swrast->Driver.WriteMonoRGBASpan)(ctx, span->end, span->x,
span->y, color, span->array->mask);
- /* XXX software alpha buffer writes! */
+ if (swrast->_RasterMask & ALPHABUF_BIT) {
+ _mesa_write_mono_alpha_span(ctx, span->end, span->x, span->y,
+ color[ACOMP],
+ span->writeAll ? ((const GLubyte *) NULL) : span->array->mask);
+ }
}
else {
/* each pixel is a different color */